Front Matter -- Acknowledgments -- Preface -- Contents -- Executive Summary -- 1 Introduction -- 2 Improving Chemical Oceanographic Data -- 3 Seawater -- 4 Chemical Reference Materials for the Analysis of Particulate and Sediment Samples -- 5 Production and Distribution of Chemical Reference Materials -- 6 Conclusions and Recommendations -- References Cited -- APPENDIX A Committee and Staff Biographies -- APPENDIX B Workshop Participants -- APPENDIX C Glossary -- APPENDIX D Acronym List and Chemical Terminology -- APPENDIX E Reference Materials Listed within this Report.